QSO J2240+0321
DSS image of QSO J2240+0321
Digitized Sky Survey image of QSO J2240+0321, 60' x 60' with north at top and west to the right

DSS image of QSO J2240+0321
Overlaid DSS image of QSO J2240+0321, 60' x 60' with north at top and west to the right
Einstein's Cross, Huchra's Lens

Type  Quasar
Magnitude  17.4
Size  
RA (2000)  22h 40' 30.2"
Dec (2000)  3° 21' 31" N
Constellation  Pegasus
Description  z=1.69 d=9.49Gyr

Observing Notes

Andrew Cooper
Aug 20, 2017    Oregon Star Party, OR (map)
22" f/4 Obsession @ 180x

While the core of the lensing galaxy was steady, the lensed images were not consistently visible, observing took patience and perseverance, for moments very small, very faint images would condense in the speckle pattern beside the core, faint but distinct, a challenging observation desite a 22" scope and good conditions, a notable gold tinge to the system
Other Data Sources for QSO J2240+0321
Associated objects for QSO J2240+0321
1 object found within 6'
PGC 69457
Nearby objects for QSO J2240+0321
Acknowledgements and Credits...

Drawings, descriptions and CCD photos are copyright Andrew Cooper unless otherwise noted, no usage without permission. Use for non-profit and educational reasons is generally given on request.

Positional and some physical information is from the NASA/IPAC Extragalactic Database (NED) which is operated by the Jet Propulsion Laboratory, California Institute of Technology, under contract with the National Aeronautics and Space Administration.

Additional object data from the SIMBAD database, operated at CDS, Strasbourg, France.

The Digitized Sky Survey was produced at the Space Telescope Science Institute under U.S. Government grant NAG W-2166. The images of these surveys are based on photographic data obtained using the Oschin Schmidt Telescope on Palomar Mountain and the UK Schmidt Telescope.

Dark nebulae data from E.E. Barnard, A Photographic Atlas of Selected Regions of the Milky Way. Ed. Edwin B. Frost and Mary R. Calvert. Carnegie Institution of Washington, 1927

Object descriptions of Rev. Webb from Celestial Objects for Common Telescopes sixth edition, Rev. T.W. Webb, 1917, edited by Rev T.E.Espin.